intel_ntb_spad_read
static int intel_ntb_spad_read(device_t dev, unsigned int idx, uint32_t *val);
intel_ntb_spad_read(ntb->device, NTB_MSIX_GUARD, &val);
intel_ntb_spad_read(ntb->device, NTB_MSIX_DATA0 + i, &val);
intel_ntb_spad_read(ntb->device, NTB_MSIX_OFS0 + i, &val);
intel_ntb_spad_read(ntb->device, NTB_MSIX_DONE, &val);
DEVMETHOD(ntb_spad_read, intel_ntb_spad_read),